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Fix and test ol.color.blend

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This commit is contained in:
Marc Jansen
2015-05-20 07:46:02 +02:00
parent 16c4082898
commit b6a4188ce4
2 changed files with 29 additions and 2 deletions
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27
test/spec/ol/color.test.js
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@@ -3,6 +3,33 @@ goog.provide('ol.test.color');
describe('ol.color', function() {
describe('ol.color.blend', function() {
it('blends red (a=1) and blue (a=1) to blue (a=1)', function() {
var red = [255, 0, 0, 1];
var blue = [0, 0, 255, 1];
var blended = ol.color.blend(red, blue);
expect(blended).to.eql([0, 0, 255, 1]);
});
it('blends red (a=1) and blue (a=0) to red (a=1)', function() {
var red = [255, 0, 0, 1];
var blue = [0, 0, 255, 0];
var blended = ol.color.blend(red, blue);
expect(blended).to.eql([255, 0, 0, 1]);
});
it('blends red (a=0.5) and blue (a=0.5) to purple (a=0.75)', function() {
var red = [255, 0, 0, 0.5];
var blue = [0, 0, 255, 0.5];
var blended = ol.color.blend(red, blue);
expect(blended).to.eql([85, 0, 170, 0.75]);
});
it('blends red (a=0.5) and blue (a=0) to red (a=0.5)', function() {
var red = [255, 0, 0, 0.5];
var blue = [0, 0, 255, 0];
var blended = ol.color.blend(red, blue);
expect(blended).to.eql([255, 0, 0, 0.5]);
});
});
describe('ol.color.fromString', function() {
before(function() {